Research/Sitter/MAGNDATA / 1.103_U2Rh2Sn.mcif

U₂Rh₂Sn

MAGNDATA entry 1.103 · source

antiferromagnet

No net magnetisation, and up and down sublattices are related by a shift or by inversion, so the bands stay spin-degenerate: a conventional antiferromagnet.

Spin group ¹4/¹m¹m¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 28 K (−245 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P_c 4₂/m b c BNS 135.492
Point group	4/mmm1′
Parent space group	P 4/m b m No. 127
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 0 1/2] 1k
Cell	a 7.5343 · b 7.5343 · c 7.249 Å · α 90° · β 90° · γ 90°
Transition	28 K (−245 °C)
Magnetic ions	U
Largest moment component	0.53 μ_B
Method	NSD

Symmetry

Stereogram of the magnetic point group: each operation applied to one direction. Filled = upper hemisphere, ring = lower; red operations include time reversal. Lines are mirrors; polygons are 2/3/4/6-fold axes; the centre ring is inversion.

Every structure in P_c 4₂/m b c →

Atom sites · 3 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
U1	U	0.1724	0.6724	0.25	0	0	0.53	0.53
Rh1	Rh	0.3674	0.8675	0
Sn2	Sn	0	0	0

Moment components are along the crystal axes a, b, c (μ_B), as magCIF writes them. Symmetry generates the rest of the cell from these sites.

Source

L.C.J. Pereira et al. J. Phys.: Condens. Matter (1996) · doi:10.1088/0953-8984/8/50/039

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.103_U2Rh2Sn.mcif from MAGNDATA · entry page

sha256 of this copy: 863b4a174ed97e1ce55c2c26b72a0e034f7fc063686c3faab91b42e2ad6bb4f2
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.103_U2Rh2Sn.mcif.